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(No Model.) 3 Sheets-Sheet E M HAMILTON TYPE WRITING MACHINE.

No. 430,773. Paltented June 24, 1890.

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(No Model.) 3 Sheets-Sheet '2.

E. M. HAMILTON. TYPE WRITING MACHINE.

No. 430,773. Patented June 24, 1890.

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E. M. HAMILTON. TYPE WRITING MACHINE.

No. 480,773,. Patented June 24, 1890.

a f 91 B la I 1 lug-types carried by the type-actuating de- UNITEDSTATES PATENT OFFICE.

EHERY M. HAMILTON, OF NEWV YORK, N. Y.

TYPE-WRITING MACHINE,

SPECIFICATION forming part 0t Letters Patent No. 430,773, dated. June24, 1890.

Application filed February 10, 1890. Serial No. 339,768. (No model.) i

To all whom) it may concern:

Be it known that I, EMERY M. HAMILTON, of the city, county, and State ofNew York, a citizen of the United States, have invented certain new anduseful Improvements in Type- Writing Machines, of which the following isa full, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification.

My invention relates to that class of typewritin g machines having avibratory typeactuating device bearing two or more printing-types incombination with a platen capable of moving in the machine to enable itto receive an impression from either of the printvice successively atthe same printing-point thereon.

My invention consists, primarily, in the combination of a vibratorytype-bar having two or more printing-types, with a platen adapted to bestruck by said types successively on the same printing-line in positionscorresponding to the number of said printing-types, which positions ofthe platen are in a line with each other at a right angle to the planeof the printlug-face of a type when in the act of striking the platen.

My invention consists, further, in a vibratory type-bar provided withtwo or more printing types, the planes of the printing-faces of whichare at an angle to each other, whereby said types may strikesuccessively on the same printing-line on a platen which is adapted toassume positions corresponding in number to the number of saidprinting-types in a line with each other at a right angle to the planeof the printing-face of a type when in the act of striking the platen;and my invention also consists in the combination of a series ofvibratory type-bars adapted to strike at a common printing-point, andeach having two or more printing-types, the planes of the printing-facesof which are at an angle one to another, with a platen adapted tovibrate 1n the direction substantially at a right angle to the plane orplanes in which the type'bars are f ulcrumed.

Figure 1 is a central vertical section of a type-writing machinecontaining my lnvention. Fig. 2is a side elevation, partly in crosssection, illustrating in detail a means for giving the platen itshereinafter-described movements. Figs. 3 and 4t are a plan and sideelevation in detail of my type-bar. Fig. 5 is a plan of and illustratesdevices which may be employed to vibrate the platen. Fig. 6 is a detailview of the platen and a type-bar, illustrating a modification of myinvention. Fig. 7 is a plan of a series of type-bars having a commonprinting-point,- and each having two printing-types; and Fig. 8 is anenlarged plan in detail of the vibrated type-bar shown in Fig. '7.

In the machine illustrated in the drawings, the type-bars are shown atA, each carrying two printing-types and arranged radially in a seriesand fulcrumed in a common plane, and adapted to strike or print at acommon printing-point, which is at the center of said series.

The form and arrangement of the series of type-bars may be varied fromthat illustrated, and any known and equivalent device may be substitutedin place of the vibratory typebar to actuate the printing-types tostrike or print at a point common to the type series without materialvariation from the essential features of my invention. The type-bars maybe actuated by the usual key-levers, as at a, connected thereto'andfurnished with fingerkeys, as at ct.

B is the platen, preferably in the form of a cylinder, and having theusual rotary movement on its axis in its supporting-carriage C, and withsaid carriage having the customary longitudinal movement across themachine during the operation of printing. The platen B is adapted tovibrate in the direction substantially at a right angle to the plane orplanes in which are the fulcrums of the series of type-bars, so that itwill assume two or more positions which will be in a line with eachother at a right angle to the plane of the printing-face ot' a type whensuch type is in the act of striking and is in contact with the platen orthe paper thereon to be printed upon. The vibration of the platen in thedirection stated may be effected by causing the carriage C and its ways0 to move at right angles to the plane of the type-bar fulcrums,

and these movements of the carriage and its ways and the supportedplaten may be effected by means of reciprocatory bars working in ways 0and engaging the under side of the carriage-ways c at each end thereof,said bars being engaged by key-lever arms c ,which are operated througha connecting fulcrum-bar c by a key 0 which key may be located in thekey-board of the machine. It should be understood, however, that I in noway limit myself to the use of the reciprocatory bars 0, arranged asdescribed, as a means for giving to the platen the stated vibrations.

When a type-bar A is vibrated to strike the platen and a type carried byit is in the act of striking the platen, as. illustrated in Fig. 1, thedescribed vibration of the platen will cause the platen to assume two ormore positions which will be in a line with each other at a right angleto the plane of the printing-face of the type which is striking theplaten and is in contact with the platen or the paper thereon to beprinted upon. The platen is thus adapted to be struck successively onthe same printing-line by the two or more types carried by each type-barin positions which correspond in number to the num ber of the types onthe type-bar, and which positions are, as stated, in a line with eachother at a right angle to the plane of the printing-face of a type whenin the act of striking said platen.

In constructing my improved type bar carrying two or more types Iarrange the planes of the printing-faces of the several types at anangle one to another, as shown in Figs. 1, 3, and 4, where a type-barhaving two printing-types is illustrated, or in Fig. 6, where a type-barhaving three printing-types is shown. The planes of the printing-facesof said types on each type-bar are arranged at such an angle to eachother successively that when the platen is vibrated, as described, toassume positions corresponding in number to the number of types on thetype bar, which positions are in a line with each other at a right angleto the plane of the printingface of one of the types on the bar when inthe act of striking the platen, the printingfaces of the other types onthe type-bar will be adapted to respectively strike the platen on thesame printing-line when the platen is inits other described positions.This is plainly illustrated in Figs. 1 and 6, the type-bar being shownstriking the platen on the same printingline thereon, first with thetype which is nearest the type-bar fulcrum, the platen being in oneposition, and then with the type or types beyond said first type on thetype-bar, the platen being vibrated into positions corresponding to thenumber of said types, which positions are all in a line at a right angleto the plane of the printingface of a type when such type is in the actof striking the platen, and the type-bar being vibrated on its fulcrumto successively bring the printing-faces of the respective types tocontact with the platen. It is evident that a type-bar may be thusconstituted which, in combination with a platen having vibration in thedirection specified, is adapted to print several characters or lettersupon said platen on the same printing-line thereon.

I find it preferable to construct the typebar with two types, and toplace upon one of the inclined faces, preferably the extreme end face,the upper-case or capital letter, .and upon the other of said inclinedfaces, preferably the one nearest the type-bar fulcrum, the lower-caseor small letter, of the same alphabetical character. By thisarrangement,.

when the platen is in normal position, as in Fig. 1, a small letter maybe printed onthe platen by the type-bar, and when it is desired to printa capital letter the platen may be vibrated to a position in a line withits position when struck by the small-letter type at a right angle tothe plane of the printingface of said small-letter type when in the actof striking, and a capital letter may then be printed on the platen bythe other type on the type-bar on the same printing-line.

- I prefer to arrange the described type-bars radially in a circularseries, as shown in Fig. 7, all adapted to strike at a commonprintingpoint, which is at the center of the series, and with theplaten, as hereinbefore set forth, adapted to vibrate in the directionsubstantially ata right-angle to the plane or planes in which the typebars are fulcrumed. When thus arranged in a series, it is a feature ofmy invention that the types carried by each type-bar throughout theseries are located, relatively to each other radially on theirrespective type-barsthat is to say, the types on each of all thetype-bars of the series which, in vibrating to strike the platen, havetheir longitudinal axis at other than a right angle to the longitudinalaxis of the platen are located on their respective typebars with thecenters of their printing-faces in a line parallel to the planes throughwhich their respective type-bars vibrate. This feature is illustrated inthe vibrated type-bar shown in Fig. 7. It is apparent that the typeswhich throughout the series of typebars are located on their respectivetype-bars nearest the type-bar fulcrums, and which, let us say, bear thelower-case or small letters of the alphabet, will be adapted to allstrike upon the platen when in its normal position at a commonprinting-point, and that the types which throughout the series oftypebars are located, as described, on their respective type-bars at theextremities thereof, and which, let us say, bear the upper-case orcapital letters of the alphabet, will be adapted to all strike at thecommon printing-point and on the same printing-line upon the platen whenthe platen is vibrated in the direction substantially at right angles tothe plane of the type-bar fulcrums to a position, as heretoforedescribed, which is in a line with its first or normal position, at aright angle to the plane of the printing-face of a type when in the actof striking theplaten;

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a type writing machine, the combination of a vibratory type-barhaving two or more printing-types with a platen adapted to be struck bysaid types successively on the same printing line in positionscorresponding in number to the number of said types, which positions ofthe said platen are in a line with each other at a right angle to theplane of the printing-face of a type when in the act of striking theplaten, substantially as set forth.

2. In a type-writing machine, a platen adap ted to vibrate to positionswhich are in a line with each other at a right angle to the plane of theprinting-face of atype in the machine when the type is in the act ofstriking the platen, substantially as set forth.

3. In a type-writing machine, the combination of a series of vibratorytype-bars, each having two or more printing-types and adapted to printat a common printing-point, with a platen adapted to vibrate in thedirection substantially at a right angle to the plane or planes in whichthe type-bars are fulcrumed, substantially as set forth.

at. In a type-writing machine, a vibratory type-bar having two or moreprinting-types, the planes of the printing-faces of which are at anangle to each other, substantially as set forth.

5. In a type-writing machine, the combination of a platen with avibratory type-bar having two or more printing-types, the planes of theprinting-faces of which are at an angle one to another, said type-barbeing adapted, when vibrated, to strike said platen with itslongitudinal axis at other than a right angle to the longitudinal axisof the platen, and said types being located on said type-bar with thecenters of their printing-faces in line radially on the type-barparallel to the plane through which the type-bar vibrates, substantiallyas set forth.

6. I11 a type-writing machine, the combination of a series of vibratorytype-bars, each having two or more printing-types, the planes of theprinting-faces of which on their respective type-bars are at an angleone to another, and the center of the printing-faces of which are in.line radially on their respective type-bars parallel to the planesthrough which the type-bars vibrate, respectively, throughout theseries, with a platen adapted to vibrate in the direction substantiallyat a right angle to the plane or planes in which the type-bars arefulcrumed, substantially as set forth.

EMERY M. HAMILTON.

Witnesses:

EDWARD STEPHENS, A. S. FITCH.

